Drive Cycle Instructions

[RK850]

The drive cycle I posted at the beginning of this thread WORKS on my 1996 850 non-turbo. I just did it again because I forgot to keep my battery connected when I did my T-timing 4 months ago, stupid me.

Here's the drive cycle again.

Start with the vehicle cool, below 122 degrees F.

Turn off the air conditioning.

Select a location where the driving can be done without violating traffic laws and you can stop safely at the side of the road.

1. Start the engine and accelerate to approximately 1500-2000 rpm.

2. Drive for 6 minutes at 1500-2000 rpm.

3. Stop the vehicle and remain at idle in drive for 70 seconds.

4. Accelerate to at least 45mph and drive for 5 minutes at 1800-2200 rpm.

5. Stop the vehicle and remain at idle in drive for 60 seconds.

6. Accelerate to at least 45 mph and drive for 4 minutes at 1800-2200 rpm.

7. Stop the vehicle and remain at idle in drive for 60 seconds.

8. Park the vehicle and turn off the engine.

This procedure must be performed TWICE (consecutively) from a cold start to set the readiness codes.

EXTRA NOTES I LEARNED THIS TIME:

Some volvo document says engine temp must between 50F to 122F. So where's 50F on the temp gauge?

It's at or just below the lowest mark on the temp gauge.

My first run ended up 100ft to a 'roadside grave', those cross you see on highway when someone dies, 1am in the morning, total darkness, and waited 2 hrs for the engine to cool for the second run. Scared the sh it out of me.

FIX your broken ABS module first!!!

I drove the cycle 2x and still failed (I bought a $60 ODBII reader and it tells me whether I pass or not after the drive cycle). Then I fixed the ABS, drive the cycle again, and PASSED. I found BBA Remanufacturing on eBay and they did a good job.

So one stupid mistake and disconnected the battery caused me lots of headaches, time, and gas. Good thing was I went to a Indian Reservation casino to wait for the car to cool for the first run. Played some pokers and won $300. So this saga ended up causing me nothing but my time.

RK850